路面结构层模量反算方法综述

Summary of backcalculation methods of pavement layer moduli

通过总结国内外路面结构层模量反算方法的研究概况 ,分析了图表法和回归公式法、迭代法、数据库搜索法、遗传算法和人工神经网络法五类方法的优缺点 ,提出了模量反算需进一步研究解决的初始值和局部收敛。

The researches on backcalculation methods of pavement layer moduli in China and other countries were reviewed. The advantages and disadvantages of 5 kinds of backcalculation methods, nomographies and regressive equations,iterative methods, database searching techniques, genetic algorithms and artificial neural networks, were discussed. It is pointed out that initial value and local convergency, uniqueness of solution, and reasonableness of backcalculation results are the 3 key issues.1 tab, 10 refs.